I came across a handy little grouping of Scourge to help speed along those of you working on the Argent Tournament. While running Battle Before The Citadel, you can burn through Taking Battle To The Enemy very quickly in the same area.
Just west of the Argent camp is an area titled "Cathedral of Darkness." Clustered all around the base are 77-78 level skeletal miners. However, they can only be seen while in the area labeled with that name. If you are in the Court of Bones, they fade out and you are not able to interact with them. Same idea as the misty areas in Borean Tundra.
Hang around the base of the cathedral and you should be able to pull most of the miners with ranged attacks. It's also a handy area to zip into briefly to drop combat if one of those damn scout gargoyles locks onto you, since all of the tournament mobs will fade out when you cross that line.